Pruning methods of navel orange trees

Navel orange is a very common fruit, which is planted all over the south, and many people also like to eat navel oranges. So what is the pruning method of navel orange tree?

1. Pruning of young trees

Navel orange shoot growth is more uniform, generally do not need pruning, as long as sprout control. In order to avoid random fertilization in cultivation, we should concentrate on applying available nitrogen fertilizer 15-20 days before the shoot, spray fertilizer outside the root before the leaf color turns green, promote it to turn green, and control fertilization in the rest of the time.

2. Pruning the result tree

1. Cultivate three-dimensional results. According to the characteristics of uniform growth of navel orange branches, stable angle of main branches and good tree shape, the lower part and inner bore branches are generally retained, and the lower part and the inside and outside of the crown bear fruit, and the pruning should be light, keeping the tree shape big and small, similar to the blunt head cone. If the fruit-bearing branch after fruit picking is strong, it can still produce good growth branch and fruit-bearing branch from the base of the fruit stem in the following spring, so it should be kept uncut. If the fruiting branch is slender and weak, it can be cut off from the base.

two。 The branches are renewed. Retraction pruning mainly in summer can not only reduce nutrient consumption, solve the contradiction of fruit shoot competition for fertilizer, but also stimulate autumn shoot growth and change the proportion of fruit mother branch. Summer pruning in Pingyuan County, Guangdong Province is generally carried out after the physiological fruit drop period to before the shoot of the fruiting mother branch. Winter shearing is carried out from fruit picking to spring shoot sprouting, combined with clear garden to cut off diseases, insects and weak branches.

Third, pruning aging trees

For trees that are too old or too airtight, the main branches can be renewed, generally sawed off at 70cm to 100cm from the base of the main branches, and the backbone branches are strongly truncated. For the senile trees whose some branches can still bear fruit, they will take turns to truncate within 2-3 years, and the side branches that are too dense and weak will be thinned to retain most of the stronger branches. In the renewal years, a certain yield can be maintained every year, the growth of new shoots is better, the sunburn is less, and the recovery of high yield is faster. The renewal should be carried out before the spring bud germination. after the renewal, sunscreen measures should be taken, such as dressing or whitening with straw, applying preservatives or wax, covering the ground and so on. After regeneration, a large number of new shoots often germinate, which should be removed in time, leaving 2-4 uniformly distributed new shoots on each main branch to form a new skeleton of the crown.

Navel orange tree pruning, according to the growth situation to prune, timely cut off diseased leaves, dead leaves to ensure good growth.